hbase过滤器查询列族名称含有“c”的所有数据

您可以使用HBase Java API中的Filter来查询列族名称含有“c”的所有数据，具体代码如下：

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.QualifierFilter;
import org.apache.hadoop.hbase.filter.SubstringComparator;
import org.apache.hadoop.hbase.util.Bytes;

public class HBaseFilterExample {
    public static void main(String[] args) throws Exception {
        Configuration config = HBaseConfiguration.create();
        Connection connection = ConnectionFactory.createConnection(config);
        TableName tableName = TableName.valueOf("table_name");
        Scan scan = new Scan();
        Filter filter = new QualifierFilter(
                org.apache.hadoop.hbase.filter.CompareOperator.EQUAL,
                new SubstringComparator("c")
        );
        scan.setFilter(filter);
        ResultScanner scanner = connection.getTable(tableName).getScanner(scan);
        for (Result result : scanner) {
            for (Cell cell : result.listCells()) {
                String rowKey = Bytes.toString(CellUtil.cloneRow(cell));
                String columnFamily = Bytes.toString(CellUtil.cloneFamily(cell));
                String columnQualifier = Bytes.toString(CellUtil.cloneQualifier(cell));
                String value = Bytes.toString(CellUtil.cloneValue(cell));
                System.out.println("rowKey=" + rowKey + ", columnFamily=" + columnFamily
                        + ", columnQualifier=" + columnQualifier + ", value=" + value);
            }
        }
    }
}

其中，`QualifierFilter`表示按列名过滤，`SubstringComparator`表示包含子串的过滤条件，`EQUAL`表示精确匹配，而在这里是使用`SubstringComparator`过滤包含子串的列族。